.div {
  width: 550px;
  height: 400px;
  background-color: pink;
  font: 14px;
}
.div a {
  color: red;
}
.div a:hover {
  color: #000;
}
.nav .log {
  font: 14px;
  color: green;
}
.nav::after {
  content: '';
}
.ss {
  width: 80px;
  height: 200px;
  border: 10px solid black;
}
img {
  width: 1.6rem;
  height: 30px;
}
